#questionPage{
width: 100%;
}

/* 消息加载状态 */
.loading {
    min-height: 40px;
    display: flex;
    align-items: center;
    padding: 0 15px;
}

/* 辅助功能优化 */
.send-button[aria-busy="true"] {
    position: relative;
    color: transparent;
}

.send-button[aria-busy="true"]::after {
    content: "";
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    border: 2px solid #fff;
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: translate(-50%, -50%) rotate(360deg); }
}